The Legend Brass Manifold Series includes the M-8000 modular manifolds, M-8200 precision manifolds and M-8220 high capacity manifolds. For the 1” and 1-1/4” M-8000 and M-8200 manifolds, Legend now offers the integrated adapter isolation valves. This new isolation valve integrates into one unit: the isolation ball valve, air vent, garden hose thread fill and purge, temperature gauge and sensor port. The air vent includes a check valve for easy servicing and the temperature gauge includes a thermo well. The 1” and 1-1/4” integrated adapter valves are sold in pairs.